Windows 11’s new “better performance” toggle shows up, but your current PC will never be able to use it

windowslatest.com Oct 26, 2026

Windows 11’s new “better performance” toggle shows up, but your current PC will never be able to use it

Curated by Shubham · TechCapsules · Oct 26, 2026

AI-summarised brief · reviewed before publication

Microsoft’s Windows 11 Insider preview (Build 29695, released Oct 23) introduced an “Advanced Performance Extensions” (APX) toggle, promising better performance on hardware that supports Intel’s APX instruction set. APX doubles the number of general‑purpose registers from 16 to 32, allowing compilers to keep more data on‑chip and reducing loads, stores, and overall instruction count in prototype tests. Intel claims the changes can cut loads by 10 % and stores by 20 % and shrink code size by 10 %, though real‑world gains remain unverified and depend on developers recompiling apps. The feature currently works only on upcoming Intel “Nova Lake” CPUs; existing Windows 11 machines can still use the Low Latency Profile but cannot enable APX. Microsoft has not announced a production rollout date.

💡 Why It Matters

· APX creates a hardware‑software lock‑in that could accelerate the migration from Windows 10 to Windows 11 by making older PCs ineligible for the new performance boost.

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Deleting Prefetch to speed up Windows actually made PCs slower, and a…

Deleting the Prefetch folder does not speed up Windows PCs and can actually slow app launches, a fact confirmed by Microsoft developer Ryan Myers and recent testing on Windows 11. Prefetch files, introduced in Windows XP, store lists of pages and files needed for an application, allowing the OS to rebuild them on first launch; clearing them forces a rebuild and introduces a temporary delay. Modern Windows versions retain up to 1,024 Prefetch entries and automatically purge the oldest, keeping the folder typically under 30 MB. Experiments on a standard Windows 11 machine and a low‑spec virtual PC showed only marginal speed differences for most apps, but noticeable lag for slower programs such as Clipchamp and the Microsoft Store after deletion. Microsoft’s incident response team reiterates that Prefetch remains enabled by default to improve launch performance, especially on traditional HDDs.

💡 Users waste time and risk slower performance by following outdated cleanup advice that ignores Windows’ built‑in management of Prefetch files.

windowslatest.com · Oct 26

Windows 11’s new “better performance” toggle shows up, but your current PC…

Windows 11 preview build 29695, released to Insiders on October 23, adds an “Advanced Performance Extensions” (APX) toggle. APX, introduced by Intel in 2023, doubles x86 general‑purpose registers from 16 to 32, allowing compilers to keep more data on‑chip and reportedly cutting loads by 10 % and stores by over 20 % in prototype tests. The feature is limited to upcoming hardware such as Intel’s Nova Lake CPUs; existing machines can still use the Low Latency Profile but cannot enable APX. Microsoft has not disclosed rollout timing or benchmark results, and developers must recompile apps to benefit, though source changes are not required. The toggle appears as part of Microsoft’s broader push to differentiate Windows 11 from Windows 10 ahead of the latter’s 2027 support end.

💡 By tying a visible performance boost to new silicon, Microsoft and Intel create a concrete incentive for users to upgrade, potentially accelerating PC replacement cycles as Windows 10 approaches end‑of‑support.

windowslatest.com · Oct 26

Tested: Windows 11’s new Outlook now beats Outlook Classic at one thing…

Microsoft has rolled out an “All Accounts” view to the new Outlook for Windows, delivering a unified inbox that aggregates messages from every linked account. The feature, announced in June and deployed from late September to late October, adds a folder‑pane section that combines Inbox, Drafts, Sent, Archive and other folders across accounts, allowing users to read, delete, search, move, archive and flag mail without switching mailboxes. Activation is optional via Settings > Mail > Folder pane. Admin controls are slated for release later this month. The update restores a capability previously available only in the retired Windows Mail app. Early testers report faster triage of work and personal messages, though cross‑account search and shared mailbox support remain incomplete for power users in enterprises.

💡 By finally offering a unified inbox on Windows, Outlook closes a long‑standing usability gap that forced many professionals to juggle multiple apps, accelerating adoption of Microsoft's new mail platform.

windowslatest.com · Oct 26

Microsoft explains why deleting Prefetch can slow down Windows 11, as it’s…

Microsoft clarified that deleting the Prefetch folder in Windows 11 does not speed up a PC and can actually slow app launches. The folder, a legacy from Windows XP, stores .pf files that list pages and files needed for each application, allowing the OS to preload data on launch. Windows 11 retains up to 1,024 Prefetch entries, automatically discarding the oldest, so the folder typically occupies only a few dozen megabytes. Tests by the author showed negligible performance gains from deletion, but a measurable delay when reopening apps—especially on low‑spec hardware—after the files were removed and the system rebooted. Microsoft’s incident response team confirmed Prefetch remains enabled by default and is designed to improve launch times, particularly on traditional HDDs, while modern SSDs already mitigate the need for such tricks.

💡 Users are wasting time and risking slower performance by following outdated cleanup advice that ignores how Windows now manages Prefetch automatically.

windowscentral.com · Oct 26

Microsoft fixes 6 frustrating Windows 11 problems in October update

On October 13, 2026 Microsoft released cumulative update KB5127648 for Windows 11. The patch adds features such as an always‑maximized app launch option, a remappable Copilot key, a new Tips widget and touch‑pad controls, while also delivering six fixes. Bluetooth reliability is boosted with eight improvements, including volume flyouts on classic audio devices, corrected connection‑status reporting, and stability fixes for the Bluetooth settings page. The update restores Windows Hello fingerprint sign‑in after boots, resolves mouse‑stutter bugs that affected aiming in games, and repairs printing failures for RAW or Generic Text Only drivers by the August update. It cures an Always On VPN glitch that left connections stuck or generated port‑in‑use errors, and patches a File Explorer issue in multi‑user Azure Virtual Desktop scenarios.

💡 Fixing these low‑level bugs keeps Windows 11 functional for remote‑work VPNs, gaming precision and enterprise printing, preventing productivity losses that could drive users to alternative platforms.

windowscentral.com · Oct 24

A cleaner, faster File Explorer context menu is rolling out to Windows…

Microsoft has begun rolling out an updated File Explorer context menu to Windows 11 Insider builds, offering a cleaner layout and faster performance. The redesign consolidates rarely used commands into a streamlined submenu and adds a “quick actions” pane that surfaces common tasks such as copy, paste, rename and share on right‑click. It uses a lighter UI framework and optimized code paths, cutting menu latency by roughly 30 percent in internal testing. The update is delivered via the Dev Channel starting with build 26063 and will later move to Beta and Release Preview streams. Insiders can enable it in Settings → Privacy → File Explorer. Microsoft says the revamp aligns with its effort to modernize core Windows experiences across desktop and tablet devices today.

💡 A snappier, less cluttered context menu directly improves daily productivity for power users and signals Microsoft’s push to refine legacy UI components for modern hardware.